Commissioning; Switching On The Boiler; Using Test Programs - Vaillant ecoTEC VU Installation And Maintenance Instructions Manual

10

Commissioning

At the time of commissioning, complete all relevant sec-
tions of the benchmark checklist found within the back
pages of this document.
Ensure that the filling and purging programs P.06 and P.00
have been allowed to run fully before the boiler is ignited
for the first time.
Ensure that all of the conversion and adjustment measures
have been carried out before you start up the boiler for the
first time. (¬ section 10.9). up to (¬ section 10.10).
Danger!
a
Risk of poisoning and burns caused by
escaping hot flue gas!
Hot flue gas can escape and cause poison-
ing and burns if the boiler is operated with
an incompletely mounted or open air/flue
gas duct or if the boiler is operated with
internal leaks with the front casing open.
> Operate the boiler
- for commissioning
- for testing purposes
- in continuous operation
only when the front casing is fitted and
closed and the air/flue gas duct is com-
pletely fitted.
> Exclusively for test purposes such as gas
working pressure testing the boiler may
be operated with the front casing
removed for short durations ONLY but
must have a completely mounted air/flue
gas duct.
i
The automatic air vent cap must be released
before filling the heating circuit or recharging
circuit and during operation.
Purge the heating circuit or the recharging cir-
cuit using the purge program P.00 (¬ sec-
tion 10.2).
Auxiliary service equipment:
The following test and measuring equipment is required for
commissioning:
– CO measuring instrument
2
– Digital or U-tube manometer
10.1

Switching on the boiler

> Close the gas valve on the boiler while you are filling and
purging the heating installation.
> Only open the gas valve again once you are requested to
do so (¬ section 10.10).
> Press the on/off button (¬ Operating instructions).
The basic display appears on the display.
Installation and maintenance instructions ecoTEC 0020173113_01
10.2

Using test programs

You can call up the test programs for the commissioning
(¬ section 9.2).
By activating various test programs, you can trigger special
functions on the boilers.
The following four test programs are available:
Display Meaning
1)
P.00 Purging test program
The heating circuit and the hot water circuit are purged
using the automatic air vent (the cap of the automatic
air vent must be released).
1 x right selection button: Start heating circuit purging
2 x right selection button ("
3 x right selection button ("
1 x left selection button ("Cancel"): Exit purging pro-
The internal pump is cyclically actuated.
Note: The purge program runs 7.5 min per circuit.
P.01 Maximum load test program:
The boiler is operated at maximum heat input after suc-
cessful ignition.
P.02 Minimum load test program:
The boiler is operated at minimum heat input after suc-
cessful ignition.
P.06 Filling mode test program:
The diverter valve (VUV) is moved to the mid-position.
The burner and pump are switched off (to fill or drain
the boiler).
10.1 Overview of the test programs
1)
Purging the heating circuit:
Diverter valve in heating position, actuation of internal pump
for 9 cycles: 30 sec. on, 20 sec. off. Display: "Active heating cir-
cuit".
Purging the hot water circuit:
After the above-mentioned cycles have run or the right-hand
selection button has been pressed again: Diverter valve in the
hot water position, actuation of the internal pump as above.
Display: "Active hot water circuit".
i
If you do not press a button for more than
15 minutes. the test programs are stopped auto-
matically. The boiler switches to normal operat-
ing mode.
To terminate the test programs, you can press the left-hand
selection button " " ("Back", "Cancel") at any time.
Commissioning
-> "): Start purging
hot water circuit
-> "): Restart heating
circuit purging
gram
10
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